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2 years ago

Simplify the expression: (y + 1)(5) =

Mathematics

2 answers:

trasher [3.6K]2 years ago

6 0

Answer:

5y + 5

Step-by-step explanation:

(y + 1)(5) is the same as 5(y + 1), so you just need to distribute:

5(y + 1)

5y + 5

Kryger [21]2 years ago

5 0

Answer:

5y + 5

Step-by-step explanation:

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gogolik [260]

The table in Part A represents y as a function of x. This means that the value of Y is dependent on the value of X. The table can be represented by an equation that describes the relation of X and Y:
$y = x^{2}$ or $f(x) = x^{2}$
By substituting any value of X, you get a specific value of Y based from the given relationship, thus Y is a function of X.

For Part B, the value of f(150) is $470 and it represents the total cost for borrowing a rowboat for 150 hours. By substituting the value of x = 150 into the function, you get the total cost:
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2 years ago

Please help last question <br> 100 divided by 10 is what

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Answer:

Step-by-step explanation:

7 0

2 years ago

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You are told that a 95% confidence interval for a population proportion is (0.3775, 0.6225) What was the sample proportion that

Maru [420]

The mean of the confidence interval is (0.3775 + 0.6225) / 2 = 0.5. Therefore, the standard deviation of the proportion would have been sqrt[0.5*(1 - 0.5) / n], where n is the sample size. This expression simplifies to sqrt(0.25/n).

A 95% CI has a corresponding z = 1.96, so since the distance from 0.5 to 0.3775 (or 0.6225 to 0.5) is equal to 0.1225. Therefore, if we divide 0.1225 / 1.96 = 0.0625, we get the value of the SD, and this should be equal to sqrt(0.25/n).

0.0625 = sqrt(0.25/n)
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3 years ago

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2 years ago

Select all that apply. Which of the following are linear factors of p(x) = x 3 - 2x 2 - 5x + 6 ?1.x+1

Mrac [35]

We can know the answer to this by letting p(x) be equal to zero and by substituting the values of x to the function.

$p(x)= x^{3} -2 x^{2} -5x+6=0$

To know what to substitute, we equate all factors to zero since even if only one of these factors is zero, the product of all factors would immediately be zero.

1. $x+1=0; x=-1$
2. $x+2=0; x=-2$
3. $x-1=0; x=1$
4. $x-3=0; x=3$

We then try to substitute each value of x to the original polynomial and see if it will equal to zero.

1. $(-1)^{3} -2(-1)^{2} -5(-1)+6=8\neq0$
2. $(-2)^{3} -2(-2)^{2} -5(-2)+6=0$
3. $(1)^{3} -2(1)^{2} -5(1)+6=0$
4. $(3)^{3} -2(3)^{2} -5(3)+6=0$

As we can see, all but number 1 equated to zero therefore numbers 2, 3, and 4 are all linear factors of p(x).

ANSWER: Numbers 2, 3, and 4.

7 0

3 years ago

Read 2 more answers